package cn.tedu.ip;

import java.io.IOException;

import org.apache.hadoop.io.*;
import org.apache.hadoop.mapreduce.Reducer;

public class IPReducer 
	extends Reducer<Text,NullWritable,Text,NullWritable>{
	@Override
	protected void reduce(Text key, Iterable<NullWritable> values,
			Context context)
					throws IOException, InterruptedException {
		
		context.write(key, NullWritable.get());
	}
}
